Pulley.



No.l84o,764. PATBNTED JAN. s, ma?.

HL J. GILBERT.

PULLBY. APPLICATION H l (f1 l '3 SHEETS-SHEET 1.

Wijf/veeg@ I PATENTED JAN. 8, 1907.' H. J. GILBERT. I

PULLBY. APPLICATION FILED JULYS,1903.

3 SHEETS-SHEET 2. l

PATENTEDYJAN. a, 1907. H. J. GILBERT.

PULLEY. APPLICATION FILED JULY 6, 1903.

3 SHEETS-SHEET 3.

UNITE sTaTns PATENT OFFICE.

HENRY J. GILBERT, or sAGINAmMIcHIGAN.

PULLE'Y. l

To @ZZ whom t rra/ayconcern:

Be it known that I, HENRY GILBERT, `a citizen ofthe United States, residing at Saginaw, in the county of Saginaw and State of Michigan, have invented certain new, and useful Improvements in Pulleys, of which t e'fl'ollowing is a description, reference being n d to the accompanying drawings, forming pa t of 'this speciiication.

y'nvention relates more'speciically to vleys constructed'of sheet metal,l and has y'lone of its objects' 'the production of a sheet-ndetztll pulley of such"'construction that a pulley of any ldesired width of face may be readily built upirom uniform spoke-andehub d construction, whereby the provision oi diilerf Aing'/lspolie-,and-hub constructions for pulleys of/diiferentgvidths is rendered unnecessary.

' f.. ,j A 'notlier object of my invention is the pro- 2o"-v`ision. of m/ore eliicie'nt' spoke-andrim -convnections of sheetlmet'al pulleys than have heretoferabeendevised.

../ A thirdfo'bjectof'my invention is 'the proionfof'novl interchangeable bushings for sheetmetalf,pulleys.

' 'Inthe-:, accompanying drawings, Figure :1 yaffside';elevation 'ofonel form of my im- .proved pulljy";l;Figs.. 2, 3, 4, and 4a, detail viewspf the spokeand-rim connections of 'I go-saidpulley; Figsb 6, 7 and 8, detail views of modied'forms of such spoke-and-rim'con- .nections 5 Figs. v9 .arid V10, perspective and `end viewsuof oneffolrml of the novel sheet-metal'4 'bushing forming onek part'of my invention;

. 3 5 Fig. 11, an end '-'vieW-of two of thev bushings 4vro YFigs.- 9.and 10 in assembled position and f provided with sheet-metal thimbles; and

. 12 a perspectiye View, and'Fig. 13 an- ;en view o va",spirally-corrugated sheetmetal :4o bushinginlor the .same purpose as the'bushings v .oliigs'` 9, 10,- and 11.

. The same letters reference are used to 'indicateeorresponding parts in the several views..

.45 In a lprior application filed June 9, 1903,

Serial o. 160, 30, `I, have illustrated one form of pulley embodying the first feature f of'my presentinventlion-i. e., a sheet-.metal pulley of such construction that a pulley of 5o anyA desired face may be readily built up from uniform spoke-and-hub construction but the construction illustrated in said application is designed more particularly for pulleys of small and medium size, and for.

vpulleys of large size I have devised the construction shown in Fig. 1 of the present appli speication of Letters Patent. Applicata nea my 6.1903. semi No. 164,427.

'Patented Jan. 8.1907.

cation. In this construction the sheet-metal rim A of the pulley is composed of four seg!r` ments, each secured at its opposite` ends tol the outer ends of a pair 'of spoke-arms B C, 6o projecting at right angles to eachother from an integral connecting hub portion D.. .Each of these spoke-arms B C D is of approximately UY shape in cross-section throughout its length, as shown in Figs.' 1a and 4. The -65 arms B B preferably abut tightly together throughout their len th While the arms C CA are separated aslig t distance from eachv other, eirceptingat their outer ends, to permit the two halves -of the pulley tolse-'clamped -.7o upon the shaft by the bolts E E. Similar. bolts F F. are passed through-the arms B B adjacent the hub of the pulley, but in the..` construction shown these bolts are employed for the purpose of permanently securing sai'ft 75 arms together, as are the bolts- G G at their outer ends, so that a two-part or'se Aarable T pulley is formed, separatingk alon t e line etween the` spoke-armslC C.;f im-bolts l H H are-passed through the arms C C at 8o their outer ends to secure together the meet- .ing ends of the two halves ofthe rim when ',j

placed upon the shaft. v A narrow faced pulley of any 'desireddiarneter may be built up in the manner above described with a single set of the four spoke-arms B C D, vand whenit is desired to -construct a pulley of Wider'face itis "simply threeeilicient arrangements of a similar charroo acter, but differing specifically from each other, one or another of which will preferably be employed. In Figs. 2 and 3 the.meeting ends of the rim-segments are provided with inwardly-benttongues I I, adapted toabut :o5 i

against each other when the. parts of the .pul-

ley are laced together, as in Fig.. 2L. The ends of t ie spoke-ar1ns C are shaped as shown in Fig. 4 or 5, being provided'with cut-away. spaces or recesses a a, leaving projecting por- 1 1o tions a a between said recesses and the ends of the spokefarlns and with end tongues b .ing in. depth to the recesses a, o.

A H, which poss www 1nent upward het-Ween the opposite sides ol" the spoke-arms,

tween the sides oi' the spoke-erin correspondln Fig. 4 the end of the spoke/*erin is also provided with laterally-projecting tongues or flanges b', adopted 5o tilt against the rim et the opposite side ot' the middle tongue The invy'ordlu-hent tongue I of the riinsegment in Fig. 3 is oi shape or provide with recesses to .receive the projecting por tions a o ofthe spoke-erin and is shaped to iit in the recesses a, ound c in the spoke-erm, as shoWn in Fig.l 3, so that its'upper surface Will come iiush with the upper edgesoi" the sides of tlie spokesnrni. The end tongues i) b of the spoke-arms ure riveted to the riniw segments hy rivets d., while tho ends oi' the spokeernis und the meeting` ends of the rimsegnients are clamped together hy the holts through the spoke-firms end through the tongues l. l. of the rim-segments, es shown in Fig. 2. The rim oonneetions oithe two spoke-arms are nlil-zo, as iiuliefit'ed in Fig. 2, itl 3, 4, :indl 4"* showing in detail the Connection oi the lower one of the two ern-is. 'Ehe employment oi the side tongues b materially' strengthen-rs the connection he l tongues b and b tween the spokes und riiuj. hut where more 'muni strength is not required they muy he omitted, :is in Figs. .l und `i. .The oonnerftion shown in simile-r to that of 'Fie i), und 4, the prirui pnl dilloronee heine; tout'y the tongues l ol' the rim-segments :iro nitide oonsideruldv wider their the spoke-sirius und no provided with openings, through which lugs ,e if upon. the edges oi' the sides of the spolui-:irnis project, the edges oi sziid spoke-:mns beingy reuessed or ont own :it their outer ends except for suoli projecting; lugs to receive the tongues l l ol' the rini-se nients and to permit them to vlil into the spokenrms. The openings in the tongues l' through Whichtfho lugs e project, are prefere-lily inode tapering, und the lugs ore swogud out to lill thein und look the tongues to the spokes, os shown. The? clumping-bolts il pass through the tongues i, es in the prvx'fious construction, und the spokeiirins muy or muy not'bo provided with the and tongues l) J oi suoli oonstruetion.

in the eonstrnetion of Fiss. 7 und 8 which vrs z lugs. 5 und 6, the

lfigs. 5 sind (i is is otherwise similiar to spol (-.-:n1i\s aire shown provided with the end oi the prior construction, Iill oiisueh tongues being riveted to the riniseg ments by rivets d.

in 9 sind l() i have shown e novel construction of interchangeable .bushing Jfor pulleys of this character composed 'of sli'eet metal stamped into shape to Jforni longitudinally-extending oor'mgotions presenting() :ter heeringeurisoes y, edepted to lit the sh hut of suohliniited length :is to leuven recess c shove its upper end und he-I I l l l l l l l l l l t l l t. l l l t r l l i l l l t l l them upon iai-ees l1y sulfined to tit the shui-t. The hushings of Figs. Sl :rnd l0 may he applied direotlr to the one upon euch side thereof, in the slniitLt-opeuing di' the pulley. und the pulloT ehunped to the sli'zil't, the outer hearingsuriauos engaging the shaft-opening oi the pulley und the inner suriuees 71 hearing directly upon ythe shaft; hut l. prefer to strengthen und bruce the bushings hy secpn ini;l Within thv-in siieet-nietul thimblos i, suoli shown in Fig. li. H; it'. he desired to key the bushing,r to the shnit, suoli shoetonetul thiinlilo muy he heut outward into one olf' tho corrugzttions oi' the bushing to i'orin it keywny, us shown at. j in Fig. 11.

in Figs. 12 und `i3 l have shown :i sheet` inettil bushing vorrespondingto thut of .lti' il, 1t), and 1t, excepting than'. its lengthnise Corrugfiiions instmid ol? being stroiiih't run spirnlly oi it', This bushing umg' he applied directly to the'sholl'l'., ns shown, or nuiy liu-re n shoot-metall thiinhle i secured in it, ors in F i3.

The bushings of either Figs. 9 und l0 or .l2 undl l-l :iro light, ollleient, undinexpensive hushinpgs Jfor pulleys ol' this eliminator.. 'lfhoy unir he inode of :my desired uuilorni length und employed in sets, thi` number of' sets used with vor-h pulley depending upon the u'idtl. ol` the pulley.

i :un uwure thut s neet-inet:il` bushings eorruggaifted in circles cireunrierentiolh' ol tlu` shaft lhave heretofore heen o nployed: 1out 'my uo'rel1 bushings having oit ier stritipglit or spire-l eorrugattions extending; lengthwise of the sholt :ire not onliv simpler :ind cheurlier to nuruidfoctnre, hut. :1re more elloieut, for the reasons, uinong others, that il they prille)y invliued to slip upon the slfull the eironiui'erontiul corrngutions ol" the old hushinggs ure :rpt to weer shallow circuiulorentiii-l grooves in the shult, und tlorohy muse the pull@v lo hol-orne looser :nul looser. ndierous with my leniftl-.wisi-oxleuding corrtugntions the lit-on ing-snrizulsof the bushing extend its full length, und no such result eunlollow any slipping ol" the pulley upon the slmlt.

timing thus l'ull)v deserihed my invention, l oluiinm l. A sopuruhlo pulley inode in tour similar parts, nach port w-Hnprising u sl1eet-1ne-tzul rinuseguient, u spoke strurture torinod ol" n, single piece of shoot metal, und vonsistiug of e. huh portion und two spolie--urni seetions projeoting therefrom :it: right. other und secured et'. their outer ends to u. rini-seg1nent, and ineens for securing the pints of.the pulley together and dumping the shaft; substantially es de'- nngles to euch scribed.

f2. .it-separable pulley made in parts, eee-h. pli-rt .comprising it sheet-motel riinssegnient, e spoke structure formed of u.

single piece of sheot'metel upproxirzuitoiy U- oi the pulley, endinner laomni{,msuiL l shaped rn cross-seetion sind eonsistuig: of e.

four simil sr l 5 securing'l the a portion 4D and two"spdke-lmlf'iri" B C' projecting therefroi'n at `right angles t'o each other an secured at ,their vouteiends to fa rim-segment boltsF 1G foi" permanently djacenterms B Btgetlier and thereby formingxtwof seperate-'h vesofvthe pulley; and .means for ,y securing sucli' two ."""helves. 4of the "pulley4 togethr "and f themto the s`het ;'substentiaillyssdescri e l lo, 3. A pulley ,comprising` the .rim-se ents the -tongues vI I?- ext'en g 'in-.

. 4A A ha ward there rom' at e 4proximete'ly vriglit an- 1' glesto' the surface o the rimliind provided i with recesses,` the sheet-metal. ok'ea.rms CC l i-5' ,provided,with recesses adapte' to receive' the' tonguesfl? Iand with-projections fitting in the 'recesses o fsaid tongues, and means :for sef .curing the opposin rim-sements and spokel,'erin's together; su stantie as described.

zo 54. A' pulley eomprisin it erimse0mentsl A A having theihtmnet' D Vtongues-I I provided with recesses, the, sheet-metal spoke- 1 yfthe' tongues I I and with the projectingy por- 'A;A having the inturned ltonguesI .sheet-metal 'spoke-amis E 5'rions al vc e "eging the recesses in th. tongues I I, an ineensv for securing the op.

l'posing lim-segments 'and spoke-arms to-v gether; substantiellvasdescribed.

5. 'A pulley. comprisin sheet-metal spokearms C C provided with the end tongues b riveted' to the rim-segments A A, end means for securing the opposing rim-seglme'nts and spoke-amis, together; 'sub-f1 3'5 stimtia e '6. A pulley comprising the rim-segmentsl ly' es .descri 1,. the' .the end tongues `b and b'- riveted to the riniio segments A A, and means for securing the opposing riln-semnents land' spoke-arms to'- Vgetlier; substantially as described.

7. A pulleiy comprisingthe rim-segments' A A having t ie inturned ton provided with recesses for thetongues Iv I and with projecting portions envngingtlie recesses in the tongues and with the end tonguesb riveted-to the rim-segments A A,

5o and vIneens for securing the opposinlr rimsegments sind spoke-amis toget er; suistantially as described.

8. A pulley comprising the nin-segments A A liiwmg the inturncdtongues I I provided 5 5 with recesses, the slieet-1mitzil spoke-amis C C provided with recesses for the tongues II I 1 -ii Aiming t .'Witl'i recesses "the sheetmet C C provided with the recesses a a for.

the rim-segments 3o -A A havirigthe 'intlirne tonguesI I, ,the

C C' provided with es I I provided 4 5 with recesses, the sheet-meta spokefarms C C with 'projecting portionsv recesses ,in the tongues and wit righ-Se vents and sg'oke .stantie y as descri .93A pulley compri efinturn'edjtonues 'I I- provided lprovided with the recesses e a forthe tongues I and with' the'projeeting portions ey Tt engagiig therecesses in said tongues,- andpvitli ltlijeend tongiles' b riveted to-the ridi-seg'- me'nts, and means 'for vse1curiug the opposing -stenti'ally as descri ed. 'f

. 10.. A pulleygeompn with recesses, the sheet-inet spoke'arrnsC C rovided with the recesses a a for the ton es segmentsz end' means'f for securing the op-l posing rim-segments and spoke-arms to. gether; 'substantially as described'. f

tially as described.

and :Wing-a:- Vsheet-'friet thimble perdre;-

substantially als described. u

and a sheet-metal" -thim ing'straight corru ations exten ing ength` Wise of it from enrto-end end'A having exter- 4nel beming-surfaces concentric to the of the bushing; substantially a,s,described.

ing` streifrlit corrugati'ons extending-'from end to end o? it and having a Sheet-meteltliimbIe permanently secured to it' within its slieftopening; substantiel] ss'described.'

- HE RY J. GILBERT. Witnesses: U i

EDWARD' RECTOR,

Louis B. ERWIN.

spoke-arms C C -v rim-segments sinds oke-arms together; 'sub-J A A having the ''iturn'ed tongues I I provided n aging the f A. Il the'fnf to es bv end b rivetedto the rim-segments, andl ineansfor securing the-opposing together.; ,SebfI sing the' lim-segments I and with the projetllgporfionsa' aenaging the ri'eje'sfsesfli'ii sind.'l tongues, and with. t :e end tonguesb'end -b riveted to the riml18o 1 l A shee'tfrnetal bushing for'p'ulleyslievi-- ing corrug'atins extending"lengthwisel of it,

external 'bearing-surfaces con-1l 8 5 centric to tie exis of 'the bushing; substan- -'12. A sheet-metal bushing for pulleys hav-f eorijugations extendii'i lengthwise ofv it.

15. A sheet-metal bushing for pulleys linv- 

